WebJun 15, 2012 · Black knot disease is easy to diagnose because of the distinctive black gall on the stems and branches of plum and cherry … WebBlack knot ( Apiosporina morbosa ) is a fungal disease that causes greenish brown to black swellings in the stems of cherry trees ( Prunus spp.). Its spores are released following periods of warm, wet weather and are spread by splashing water, wind, birds, and insects. The Problem Black knot deforms branches and reduces their growth.

Dibotryon morbosum - Wikipedia

WebMay 9, 2024 · The black knot fungus, Apiosporina morbosa, is a plant disease that affects species from the Prunus genus of trees and scrubs. This disease creates large black galls and cracks on trees – causing significant economic damage to stone fruit crops, ornamental plants, and the timber industry. WebBlack knot is a widespread fungal disease that attacks plum and cherry trees, both fruiting and ornamental. The fungus, Apiosporina morbosa, (also identified as Dibotryon … aline tokio clima tempo

Black knot UMN Extension - University of Minnesota

WebJun 19, 2024 · Always ensure that your shears are clean and sterilized to avoid spreading diseases. 2. Black Knot. Commonly known for attacking cherry and plum trees, black knot is a fungal infection recognizable by … WebJul 31, 2024 · Black Knot is an important disease for North American cherry and plum orchards. Typically, the fungus can reduce yields in plum orchards by about 10% and in cherry orchards by about 1%. However, … WebBlack knot disease is a fungal disease caused by Apiosporina morbosa. As its name suggests, black knot disease causes knots or galls to form on the woody parts of trees, namely twigs,... aline tognini